As I understand it...
The motherboard bus speed/CPU are your limiting factors...when assessing whether any benefit can be obtained...by running RAM which has a speed of whatever.
The system...remember, all parts work together...cannot perform better than it's slowest contributor....whether that is motherboard bus speed, CPU, or RAM module.
That Compaq chart indicates that the max bus speed will be 333 on that particular motherboard. The only way to change that (increase it, I mean) is to replace that board with a different board having different capabilities.
The one exception would be overclocking...but oveclocking carries its own inherent risks and I don't think it's to be recommended to anyone.http://www.google.com/search?hl=en&sou...mp;oq=&aqi=
Putting PC3200 in a system that runs routinely at a lesser speed....would just have the system running at the same speed with RAM modules having unused potentials. If the clock/system is running at 333, it matters not if the RAM can run at 400.
The major reason that some of us have run faster RAM in a system...has to do with the price differential and availability.
I ran PC2700 in a PC2100 system...because PC2700 cost less at the time and would not harm the system.
The RAM speed is controlled by the motherboard/CPU...it's not running as fast as it can, it works within the confines of the system.